61852251 has 4 divisors (see below), whose sum is σ = 82469672. Its totient is φ = 41234832.

The previous prime is 61852249. The next prime is 61852253. The reversal of 61852251 is 15225816.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (61852249) and next prime (61852253).

It is not a de Polignac number, because 61852251 - 2¹ = 61852249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61852253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10308706 + ... + 10308711.

It is an arithmetic number, because the mean of its divisors is an integer number (20617418).

Almost surely, 2^61852251 is an apocalyptic number.

61852251 is a deficient number, since it is larger than the sum of its proper divisors (20617421).

61852251 is a wasteful number, since it uses less digits than its factorization.

61852251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20617420.

The product of its digits is 4800, while the sum is 30.

The square root of 61852251 is about 7864.6202069776. The cubic root of 61852251 is about 395.4745159902.

The spelling of 61852251 in words is "sixty-one million, eight hundred fifty-two thousand, two hundred fifty-one".